Home / 32,220.32-48,306.17-21,129.80

Finding the Fourth Proportional to 32,220.32, 48,306.17 and 21,129.80

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Solution

The fourth proportional to 32,220.32, 48,306.17 and 21,129.80 is: 31,678.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,220.32 : 48,306.17 = 21,129.80 : x
  2. Step 2: Convert to fraction form
    32,220.32/48,306.17 = 21,129.80/x
  3. Step 3: Cross multiply
    32,220.32x = 48,306.17 × 21,129.80
  4. Step 4: Simplify right side
    32,220.32x = 1,020,699,884.46
  5. Step 5: Solve for x
    x = 1,020,699,884.46/32,220.32
  6. Step 6: Final answer
    x = 31,678.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.